Down Syndrome Association of Greater St. Louis (DSAGSL) Office Location 1201 Hanley Industrial Ct, Suite ABrentwoodMissouri63144 Next Event Down Syndrome Association of Greater St. Louis Education Conference in Brentwood, Mo. - Saturday, October 12, 2024 - 9:00 am - 3:00 pm Upcoming Events Down Syndrome Association of Greater St. Louis Education Conference in Brentwood, Mo. - Saturday, October 12, 2024 - 9:00 am - 3:00 pm